BUILDMART - 12-Inch 1 Slot L-Shape Corner Plenum Box for [Continuous Linear Slot Diffuser - 1 Slot - 3/4-Inch Slot Width] 90° Corner Connector - Premium Insulated - Heating & Cooling - Texas Buildmart

Continuous Galvanized Sheet Metal 90° Corner (L-shape) Plenum Box with Foam Insulation, ideal for Texas Buildmart 12" 90° Corner (L-Shape) Linear Slot Diffuser. Designed for corner applications, this unit allows for a smooth 90-degree transition while properly terminating the diffuser run and maintaining consistent airflow. This plenum box can be combined with 5 ft, 6 ft, 7 ft, 8 ft, or 9 ft continuous linear slot diffuser plenum boxes to achieve the required layout. This air-distribution box attaches directly to the HVAC supply that heats or cools the air. Professional HVAC installer recommended. Ideal for Texas Buildmart 12" Linear Slot Diffuser – 1 Slot (90° Corner Application) Galvanized sheet metal 90° L-shape plenum box with foam insulation Total Box Dimensions: L: 16 1/4" (L-Shape Length) W: 2 7/8" H: 12" Mouth Dimensions: L: 15 3/4" (L-Shape Length) W: 1 5/8" This air-distribution box attaches directly to the HVAC supply that heats or cools the air Compatible with 1-slot 90° L-shape linear slot diffusers and 5 ft, 6 ft, 7 ft, 8 ft and 9 ft continuous linear slot diffuser plenum boxes